Hoist drum cover



E. B. LEAR ET AL HOIST DRUM COVER June 18, 1946.

Filed Sept. 5', 1945 Patented June 18, 1946 HOIST DRUM COVER Earl B.Lear, Garfield Heights, and Andrew Meyer, Cleveland Heights, Ohio,assignors to The Cleveland Pneumatic Tool Company, Cleveland, Ohio, acorporation of Ohio Application September 3, 1943, Serial No. 501,170

2 Claims. 1

The present invention relates broadly to slusher hoists, but moreparticularly to improvements in a cover or guard for the winding drumsof such hoists.

One object of the invention is to provide a cover structure for thedrums of a slusher hoist which will permit rapid assembly anddisassembly of said hoist.

Another object of the invention resides in the provision of a coverstructure arranged on the hoist in a manner to add rigidity thereto.

A further object of the invention is to provide a cover or guard for thewinding drum which includes pivoted closure members arranged to concealand protect the cable being wound thereon but which are readilyaccessible to view the travel of the cable, when occasion demands.

Other objects and advantages more or less ancillary to the foregoingreside in the specific construction and aggroupment of the elements,

peculiar to this structure, as will become apparent from a more completeexamination of this specification.

In the drawing which illustrates the invention: Fig, 1 is a sideelevational view of a hoist emubodying the invention.

Fig. 2 is an enlarged cross-sectional view taken substantially on line2-2 of Fig. 1.

Fig. 3 is a perspective view of the cover sections, the same being shownremoved from the hoist. I

Fig. 4 is a perspective view of the Divoted'closure members of the coverremoved from said cover.

Referring to the drawing for a more detailed description thereof, and inwhich like numbers designate corresponding parts throughout the severalviews, the hoist is generally designated by the reference numeral 5 andinclude a base frame 6 having two parallel side members 1 and 8,preferably made of L-shaped angle iron, and secured together by anysuitable means such as cross-bolts 9. Longitudinally mounted on theframe 6, there is a hoist assembly shown to include a motor ID, ahydraulic coupling housing I I and a gear reduction casing [2, allsecured together by bolts l3. Obviously, the driving member l4 of thehydraulic coupling within the housing H is operatively connected to themotor l0. while the driven member l5 of the hydraulic coupling ismounted on a shaft, not shown, extending into the gear reduction casingl2. Projecting 1ongitudinally away from the casing l2, there is a shaft16 adequatel journaled within longitudinally spaced bearing supports l1,l8, and I9, the bearing support I! being an integral part of 2 thecasing l2, while the support l9 forms the end of the hoist assemblyshown in Fig. 1. Each of these supports is rigidly secured to the baseframe 6 by the cross-bolts 9, while the upper end of each support isformed with a lug 20 through which extends a tie rod 2|.

Rotatably mounted so as to be driven through the shaft 16 are one ormore spaced drums 22, there being two shown in Fig. 1, but it is to beunderstood that one or more such drums are capable of being used in ahoist of this character. The drums 22 are operatively associated withother drums 23 which in turn are interconnected with the shaft l6 by anysuitable gearing in a manner to drivingly rotate one or the other ofsaid drums 22f Thetype of driving mechanism employed is well known inthis art and forms no part of the present invention.

In accordance with the present invention, the drums 22 are each providedwith a cover or closure member, the construction of which permits rapidassembly and disassembly of the hoist. The

covermember is best shown in Fig. 3 of the draw ing and comprises a pairof semi-cylindrical shaped sections 24 and 25 formed with annular rimsand adapted to be disposed around each drum 22. The section 24 is formedwith a bifurcated end 26 while the section 25 is formed with aloopedterminal 2'! adapted to be disposed between the sections of thebifurcated end when in position to receive the tie rod 2|. supports l1,l8, and I9 have lugs 28 formed on opposed sides thereof to receive thetie rods 29. When the sections 24 and 25 are in position around each ofthe drums 22, th side tie rods 29 will pass through openings 30 formedin the side wall of each section. .As is to b understood, the openings30 are in longitudinal alignment with the lugs 28 as are also thebifurcated ends of the sections in alignment with the lugs 20. In actualpractice, spacer members 3| are disposed between the bearing supports l1and I3 and the adjacent faces of the sections 24 and 25. Likewise,similar spacer members 32 are disposed between the lug 28 and the outerfaces of the sections 24 and 25. By means of the nuts 33, the tie rods2| and 29 are securely clamped in the assembly of the device and theentire unit forms a rigid compact cover for the drums 22.

The lower half of each section 24 and 25 is provided with a plate-likeportion 34 and 35 which are in substantial contacting relation when thecover is in place as shown in Fig. 2 of the drawing, and it will beobserved that said plate-like portions are confined within the parallelside The bearing,

members 1 and 8 of the base 6. These portions protect the lower side ofthe drums.

The section 24 is formed with relatively large openings 36 and 31, andthe section 25 is formed with similar openings 38 and 39. The openings35, 38, and 39 are adapted to be closed by individual flaps 40, whilethe opening 31 remains uncovered because the cable is trained throughsaid opening and over and around it respective drum 22, In other words,the cable passes through the openings 31 as it is being wound andunwound from the drums 22. Each flap 40 is formed with a pair oflaterally extending ears 4| which extend within the sections and betweenth annular rims thereof through which projects a pin or other fasteningmeans 42. In this manner, each flap 40 is pivotally connected to itsrespective section so as to close the openings therein and the upper endof the upper flaps carry locking studs 43 for retaining said flaps inclosed position. The flap closing the opening 39 which is identified bythe reference numeral 48' has its outer end resting against the plate 35and is thus precluded from pivotal movement. It is unnecessary to openthe iiap 40 since the operator of the hoist, when desiring to view thetravel of the cable on the drum, opens one or the other of the flaps 40and moves it back on its pivot.

When rollers are desired for guiding the cable in its travel to and fromthe drums, the same may be secured between the annular rims of thesection 24 by being supported therebeteween and mounted on studs adaptedto extend through the openings 44. In Figs. 1 and 2 of the drawing, thesections 24 and 25 have been disclosed with the flaps 40 removed forsake of clarity; however, it is to be understood that use of the flapsis optional. The cover and flaps are primarily designed to protect thecable being wound on the drums when using the hoists in mines and forprotecting the drums from falling particles in such use.

From the above description when taken in connection with theaccompanying drawing, it will be apparent that there has been provided acover structure for the drums of a slusher hoist which will add rigidityto such hoists while permitting rapid assembly and disassembly thereof.The cover sections are relatively light so that the weight of the hoistis not materially increased with the use thereof,

Although the foregoing description is necessarily of a detailedcharacter, in order to completely set forth the invention, it is to beunderstood that the specific terminology is not intended to berestrictive 0r confining and it is to be further understood that variousrearrangements of parts and modifications of structural detail may beresorted to without departing from the scope or spirit of the inventionas herein claimed.

We claim:

1. In a portable slusher hoist or the like, a base frame, spaced bearingsupports connected to said base frame and extending verticallytherefrom, a winding drum rotatably. carried by said supports, a coverfor said drum, said cover comprising a pair of semi-circularly shapedmembers adapted to encircle said drum, said bearing supports and saidsemi-circular members having aligned apertures therein, and a tie rodextending through said apertures for connecting said bearing supportsand said cover members together.

2. In a portable slusher hoist or the like, a base frame, spaced bearingsupports connected to said base frame and extending verticallytherefrom, a winding drum rotatably carried by said supports, a coverfor said drum, said cover comprising a pair of semi-circularly shapedmembers adapted to encircle said drum, said cover having an aperturetherein aifording access to said drum, a movable member for closing saidaperture, means for retaining said movable member in closed position,ears or lugs on said bearing supports and said semi-circular membersspaced from said base frame and having apertures extending therethrough,and tie rods extending through said apertures in said lugs or ears forconnecting said bearing supports and said cover members together wherebya light rigid structure is provided for supporting said winding drum.

EARL B. LEAR. ANDREW MEYER.

